This circuit provides a reference voltage for calibration. He uses a diode in a small thermal chamber. We found this circuit in an old american documentation.
Maxim MAX20056B 6 Channel High Brightness LED Controller Maxim Integrated makes available through...
This circuit was found in an American 1980s documentation. PUTs are rare today. Capacitors C1 and C2 are...
This is a change from the previous interface, also used an uncommon operational one today. The...